NLMK Group

Economy and Production TECHNICAL UPGRADES 20
Overhead Travelling Crane
Commissioned at VIZ-Stal
A new overhead travelling crane has been
commissioned at the Cold Rolling Shop at VIZ-Stal.
It has a lifting capacity of 22 tonnes, two tonnes
greater than its predecessor. The new crane replaced
the shop’s most often used lifting and transportation
vehicle, which has run out its useful life.
According to maintenance engineer Mr. Roman
Moskvitin, who provided training for the crane
operators, the new crane relies on several technical
innovations not present in similar lifting equipment
used in the Cold Rolling Shop. Among other things,
the design of the crane incorporates state-of-the-art
frequency converters manufactured by Siemens,
which will allow for further upgrading of the crane
without installing additional equipment. The crane
was designed in compliance with industrial safety
requirements, and has joysticks, instead of
controllers used in the older cranes. The business
spent more than RUR23 million (~USD0.8 million;
~EUR0.6 million) to replace the crane.
NLMK Launches
NEW BOF
NLMK’s new 300 tonne BOF
was put into operation at the
Company’s main production site
in Lipetsk.
The new facility is equipped
with an efficient secondary
emissions collection and cleaning
system. Investments into the
project have totaled about
RUR14.8 billion (~USD510
million; ~EUR362 million).
Alongside other Technical Upgrade
activities, the launch of the new
BOF will allow for a 36% increase
in steelmaking capacity at the
Lipetsk site, up to 12.4 mtpy.
Looking for Quality
The High-Voltage Testing Group
of the Electrical Networks,
Substations and Automation
Operations Shop’s Central
Laboratory at Stoilensky
introduced instrumentation
for determining the quality of
transformer oil and other liquid
insulators.
“The new device relies
on modern methods, which
allow for more informative
representation of the testing
process for liquid insulators,”
explains Mr. Ruslan Dyatlov,
Head of the High-Voltage Testing
Group.
Pre-commissioning work and
proof running for the new device
was completed with success.